Universal Parts QMB139 Crankshaft, Type-1


LogoUniversal Parts Crankshaft Assembly, Type-1 for 50cc 4-stroke QMB139 engines. Has 16 tooth oil pump drive gear.

9 in stock

SKU: 151-19 Category:


  • Stroke: 41.4mm
  • Overall Length: 247mm
  • Thread Size (tapered side): M10x1.25
  • Thread Size (spline side): M12x1.25
  • Bearing Outer Diameter (tapered side): 42mm
  • Bearing Outer Diameter (spline side): 47mm
  • Number of Splines: 26
  • Number of Teeth (oil pump drive gear): 16

Additional information

Weight 4.2 lbs